Analysis

  • max time kernel
    139s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230831-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230831-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-09-2023 01:20

General

  • Target

    msvcr100.dll

  • Size

    755KB

  • MD5

    0e37fbfa79d349d672456923ec5fbbe3

  • SHA1

    4e880fc7625ccf8d9ca799d5b94ce2b1e7597335

  • SHA256

    8793353461826fbd48f25ea8b835be204b758ce7510db2af631b28850355bd18

  • SHA512

    2bea9bd528513a3c6a54beac25096ee200a4e6ccfc2a308ae9cfd1ad8738e2e2defd477d59db527a048e5e9a4fe1fc1d771701de14ef82b4dbcdc90df0387630

  • SSDEEP

    12288:nMmCy3nAgPAxN9ueqix/HEmxsvGrif8ZSy+rdQw2QRAtd74/vmYK6H3BVoe3z:MmCy3KxW3ixPEmxsvGrm8Z6r+JQPzV7z

Score
3/10

Malware Config

Signatures

  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\msvcr100.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1628
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\msvcr100.dll,#1
      2⤵
        PID:408
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 408 -s 600
          3⤵
          • Program crash
          PID:1744
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 408 -ip 408
      1⤵
        PID:3484

      Network

      MITRE ATT&CK Matrix

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      Downloads